1379553 has 16 divisors (see below), whose sum is σ = 2119680. Its totient is φ = 781776.

The previous prime is 1379549. The next prime is 1379579. The reversal of 1379553 is 3559731.

It is not a de Polignac number, because 1379553 - 2² = 1379549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3576 + ... + 3942.

It is an arithmetic number, because the mean of its divisors is an integer number (132480).

2^1379553 is an apocalyptic number.

It is an amenable number.

1379553 is a deficient number, since it is larger than the sum of its proper divisors (740127).

1379553 is a wasteful number, since it uses less digits than its factorization.

1379553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its digits is 14175, while the sum is 33.

The square root of 1379553 is about 1174.5437412034. The cubic root of 1379553 is about 111.3216060492.

Subtracting from 1379553 its product of digits (14175), we obtain a triangular number (1365378 = T₁₆₅₂).

The spelling of 1379553 in words is "one million, three hundred seventy-nine thousand, five hundred fifty-three".